Suppress tests currently untestable under Java 9 (when building on Java 9).

pom.xml

@@ -192,6 +192,12 @@
          <version>${pax.exam.version}</version>
          <scope>test</scope>
       </dependency>
+      <dependency>
+         <groupId>org.ops4j.pax.exam</groupId>
+         <artifactId>pax-exam-link-assembly</artifactId>
+         <version>${pax.exam.version}</version>
+         <scope>test</scope>
+      </dependency>
       <dependency>
          <groupId>org.ops4j.pax.exam</groupId>
          <artifactId>pax-exam-link-mvn</artifactId>
@@ -362,10 +368,14 @@
                <version>2.19.1</version>
                <configuration>
                   <!-- Sets the VM argument line used when unit tests are run. -->
-                  <argLine>${surefireArgLine}</argLine>
+                  <argLine>${surefireArgLine}
+                     --add-opens java.base/java.net=ALL-UNNAMED
+                     --add-opens java.base/java.security=ALL-UNNAMED
+                     --add-exports java.base/sun.net.www.protocol.http=ALL-UNNAMED
+                     --add-exports java.base/sun.net.www.protocol.https=ALL-UNNAMED</argLine>
                   <!-- Skips unit tests if the value of skip.unit.tests property is true -->
                   <skipTests>${skip.unit.tests}</skipTests>
-                  <reuseForks>false</reuseForks>
+                  <reuseForks>true</reuseForks>
                </configuration>
             </plugin>
 

src/test/java/com/zaxxer/hikari/osgi/OSGiBundleTest.java

@@ -17,6 +17,10 @@ package com.zaxxer.hikari.osgi;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.junit.runner.manipulation.Filter;
+import org.junit.runner.manipulation.NoTestsRemainException;
+import org.junit.runner.notification.RunNotifier;
+import org.junit.runners.model.InitializationError;
 import org.ops4j.pax.exam.Configuration;
 import org.ops4j.pax.exam.Option;
 import org.ops4j.pax.exam.junit.PaxExam;
@@ -24,9 +28,9 @@ import org.osgi.framework.Bundle;
 import org.osgi.framework.BundleContext;
 
 import javax.inject.Inject;
-
 import java.io.File;
 
+import static com.zaxxer.hikari.pool.TestElf.isJava9;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 import static org.ops4j.pax.exam.CoreOptions.*;
@@ -34,9 +38,37 @@ import static org.ops4j.pax.exam.CoreOptions.*;
 /**
  * @author lburgazzoli
  */
-@RunWith(PaxExam.class)
+@RunWith(OSGiBundleTest.ConditionalPaxExam.class)
 public class OSGiBundleTest
 {
+   @Test
+   public void checkInject()
+   {
+      assertNotNull(context);
+   }
+
+   @Test
+   public void checkBundle()
+   {
+      Boolean bundleFound = false;
+      Boolean bundleActive = false;
+
+      Bundle[] bundles = context.getBundles();
+      for (Bundle bundle : bundles) {
+         if (bundle != null) {
+            if (bundle.getSymbolicName().equals("com.zaxxer.HikariCP")) {
+               bundleFound = true;
+               if (bundle.getState() == Bundle.ACTIVE) {
+                  bundleActive = true;
+               }
+            }
+         }
+      }
+
+      assertTrue(bundleFound);
+      assertTrue(bundleActive);
+   }
+
    @Inject
    BundleContext context;
 
@@ -48,7 +80,6 @@ public class OSGiBundleTest
          systemProperty("org.ops4j.pax.logging.DefaultServiceLog.level").value("WARN"),
          mavenBundle("org.slf4j", "slf4j-api", "1.7.5"),
          mavenBundle("org.slf4j", "slf4j-simple", "1.7.5").noStart(),
-            mavenBundle("org.javassist", "javassist", "3.19.0-GA"),
          new File("target/classes").exists()
             ? bundle("reference:file:target/classes")
             : bundle("reference:file:../target/classes"),
@@ -57,35 +88,26 @@ public class OSGiBundleTest
       );
    }
 
-    @Test
-    public void checkInject()
+   public static class ConditionalPaxExam extends PaxExam
    {
-        assertNotNull(context);
+      public ConditionalPaxExam(Class<?> klass) throws InitializationError {
+         super(klass);
       }
 
-    @Test
-    public void checkBundle()
-    {
-        Boolean bundleFound = false;
-        Boolean bundleActive = false;
-
-        Bundle[] bundles = context.getBundles();
-        for(Bundle bundle : bundles)
-        {
-            if(bundle != null)
-            {
-                if(bundle.getSymbolicName().equals("com.zaxxer.HikariCP"))
-                {
-                    bundleFound = true;
-                    if(bundle.getState() == Bundle.ACTIVE)
-                    {
-                        bundleActive = true;
-                    }
+      @Override
+      public void run(RunNotifier notifier) {
+         if (!isJava9()) {
+            super.run(notifier);
          }
       }
+
+      @Override
+      public void filter(Filter filter) throws NoTestsRemainException {
+         if (isJava9()) {
+            throw new NoTestsRemainException();
          }
 
-        assertTrue(bundleFound);
-        assertTrue(bundleActive);
+         super.filter(filter);
+      }
    }
 }

src/test/java/com/zaxxer/hikari/pool/TestElf.java

@@ -44,6 +44,10 @@ public final class TestElf
       // default constructor
    }
 
+   public static boolean isJava9() {
+      return System.getProperty("java.version").startsWith("9");
+   }
+
    public static HikariPool getPool(HikariDataSource ds)
    {
       try {

src/test/java/com/zaxxer/hikari/pool/TestMetrics.java

@@ -44,8 +44,6 @@ import com.zaxxer.hikari.metrics.MetricsTrackerFactory;
 import com.zaxxer.hikari.metrics.dropwizard.CodahaleMetricsTrackerFactory;
 import com.zaxxer.hikari.util.UtilityElf;
 
-import shaded.org.codehaus.plexus.interpolation.os.Os;
-
 /**
  * Test HikariCP/CodaHale metrics integration.
  *
@@ -85,7 +83,7 @@ public class TestMetrics
    @Test
    public void testMetricUsage() throws SQLException
    {
-      assumeFalse(Os.isFamily(Os.FAMILY_WINDOWS));
+      assumeFalse(System.getProperty("os.name").contains("Windows"));
       MetricRegistry metricRegistry = new MetricRegistry();
 
       HikariConfig config = newHikariConfig();

src/test/java/com/zaxxer/hikari/util/TomcatConcurrentBagLeakTest.java

@@ -16,9 +16,11 @@
 
 package com.zaxxer.hikari.util;
 
+import static com.zaxxer.hikari.pool.TestElf.isJava9;
 import static java.util.concurrent.TimeUnit.MILLISECONDS;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
+import static org.junit.Assume.assumeTrue;
 
 import java.io.DataInputStream;
 import java.io.IOException;
@@ -28,6 +30,9 @@ import java.lang.reflect.Method;
 import java.net.URL;
 import java.util.concurrent.CompletableFuture;
 
+import com.zaxxer.hikari.pool.TestElf;
+import org.junit.Assume;
+import org.junit.Before;
 import org.junit.FixMethodOrder;
 import org.junit.Test;
 import org.junit.runners.MethodSorters;
@@ -45,6 +50,8 @@ public class TomcatConcurrentBagLeakTest
    @Test
    public void testConcurrentBagForLeaks() throws Exception
    {
+      assumeTrue(!isJava9());
+
       ClassLoader cl = new FauxWebClassLoader();
       Class<?> clazz = cl.loadClass(this.getClass().getName() + "$FauxWebContext");
       Object fauxWebContext = clazz.newInstance();
@@ -60,6 +67,8 @@ public class TomcatConcurrentBagLeakTest
    @Test
    public void testConcurrentBagForLeaks2() throws Exception
    {
+      assumeTrue(!isJava9());
+
       ClassLoader cl = this.getClass().getClassLoader();
       Class<?> clazz = cl.loadClass(this.getClass().getName() + "$FauxWebContext");
       Object fauxWebContext = clazz.newInstance();